Yep, a two part story I just jotted down really quick. I know this isn't the best of my writing but here you go...
"It's bigger on the inside!" Faith gasped. They heard the sound of an engine behind them and Michael appeared, "What are you doing here?"
"You leave me on the biggest day of my life without telling me. I deserve to know… whoa," Michael stared into the TARDIS agape. "What is this… thing?"
The Doctor glared at the unwanted car, "You aren't invited here. You are to leave." He pointed at the door. Michael glared back. "Alright, get out of here."
"I don't take orders from you, Doctor," the car said in a snarl.
"Of course you don't," Rose said helpfully, "But do you really want to be with him all day? That's what will happen if you come with us."
"She's right, you know," Faith nodded.
Michael looked at them suspiciously, "I don't know what you're trying to hide but I don't like it. I know when I'm not wanted, ta-ta!" He reversed with a scowl.
"He's not the nicest of personalities is he?" Rose said, closing the door as soon as the car was away.
Faith rubbed the back of her neck, "Not really, I'm actually surprised that Molly married him. She's so sweet, kind, and loving."
"Alright, you two, your time is 3015, May 17th and we will be going to year 3017, May 18th, New York." The Doctor began pulling levers and pushing buttons on the TARDIS consol. The TARDIS creaked and groaned unlike anything they'd heard and the Doctor crossed his arms and smiled.
"Wait," Faith gasped, "We're going to the future?"
"Exactly, the TARDIS is a time machine in both time and space." Faith glanced around her for a second before the Doctor threw the door open. The sight was normal except for one thing: everything was bigger, taller, and ten times louder. Engines could be heard through the streets and gleaming cars drove around but not normal cars, living, breathing cars. Faith looked horrified. "This is the Earth one year later. Humans have been destroyed and cars rule. Planes have brought the cars to other continents. The few humans left are in hiding, shivering in fear that the cars will find them."
Faith covered her eyes, "They would never go this far! I don't believe it, I can't believe it!" Rose put a hand on her shoulder and Faith fell back into it. "Michael, Wolfgang, Samuel, Molly, Paul, Storm, and everyone else, what have you done!"
"It was instinct, the humans didn't want to allow the cars and planes to live at the same level in society and the cars defended themselves. Cars, being stronger and larger than humans, easily took over." Faith only buried deeper into Rose's sleeve.
"I think she's seen enough," Rose snapped at the Doctor. "We all know what we have to do."
"You can't destroy them!" Faith grabbed Rose's shoulders, "I know that they aren't really evil!"
The Doctor looked at her and softened, "If there were any other way I'd take it."
"Wait!" Rose flung her arms out, "What about the Dead Planet?"
The Doctor sighed, "I don't know, Rose, that planet may not be able to even support life, even mechanical life."
"We could try!" Rose exclaimed. "It would end in a better way." Faith gave him puppy dog eyes and he gave in.
"Fine, we'll try." The Doctor knew that he couldn't possibly kill the cars. Not after… oh, never mind. He switched the TARDIS's controls to bring them back to the past with a smile. The day was exactly as they left it except with Michael sobbing. The car looked at them and then looked away, "She's gone."
Faith's mother knelt over the car's hood, stroking it. Tears were in her eyes. "Everything went wrong, she had twins and she…" Faith clutched Rose and her tears poured down her face. "They survived."
Faith gave a little smile, "May I see them?"
Her mother gave a nod. Despite the depressing situation she grabbed Rose's sleeve and pulled her into the barn. Oil was splattered everywhere and in the middle of it all was a car, a car that used to be alive. Her eyes were closed as they would be forever more. Faith stood shocked at the sight. Rose watched as Faith's eyes passed over two small cars, one silver blue and the other almost white. Faith picked the white one up and pressed it against her, "I'm naming her Amy." She then picked up the second and passed it to Rose. "You should name him."
Rose held the tiny car in a sort of awe. This thing was alive and she was in charge of naming it. "I don't know," She said, looking the car down, "Maybe… Finn?"
Faith's eyes lit up, "It's almost perfect, but not quite. I don't think Michael would approve. I think we should name him Michael for him. He'd like that."
"Don't you get attached to them," the Doctor stood, arms crossed, in the doorway. "We're leaving to bring them to the Dead Planet."
"How exactly are you going to fit twenty-three adult cars along with fifteen planes into that blue box of yours?" Faith asked.
"I'll be able to," the Doctor said mysteriously. "We're going to start with these two."
"But… what about mom, she wouldn't be happy having her life's work being whisked away to another planet."
Her mother came in with tears in her eyes, "He's right about the cars. We've got to take them to the Dead Planet, no matter what."
Michael rolled in, "I've seen it too. I don't want that to happen. I'll be thrust into the ends of space to protect them."
"That's what will happen," the Doctor said. "The Dead Planet is beyond this galaxy."
Michael suddenly looked very timid, "Why exactly do they call it the Dead Planet?"
"No life form has lived on it for hundreds of years. They decided to leave because of a poison in the ground. It killed off any sort of animal. Those animals have rotted and have turned into oil. The poison has been run out of the soil so there is now vegetation and clean water under the clouds. The planet is so much like Earth that you'll be happy there. It is a perfect planet for cars to live on."
Another car rolled in followed by an airplane and many more cars. Almost all of the cars were young and only one of the planes was full grown and he was a navy blue Corsair. "We're ready to leave," the plane nodded.
The Doctor looked slightly confused, "So why is it that you have only old cars and planes rather than modern ones?"
"Oh," Faith's mother smiled a bit, "The older the plane or car the stronger the plane or car, unless you're talking about Model Ts. I also like their looks better."
The Doctor nodded and took Amy from Faith's arms. "We'd better get going then."
Everyone crowded into the police box except for Faith's mother who had decided that she wanted to stay behind. The Doctor heard the TARDIS complaining as bright as day over her maximum capacity. Rose carried Michael Jr. in her arms as they traveled through space and onto the Dead Planet. When the doors flew open a new world surrounded them. Grass fields surrounded them and small streams ran through the valleys. Michael and the Corsair were the first to come out. Even with the death of Molly still fresh in his mind, Michael managed to smile. This was his new home and he was to lead this group of Earth cars across this new globe. The Doctor smiled, "Once again everybody lives!"
1000 Years Later
The Dead Planet
The Doctor was almost afraid to see the cars behind the door. Rose and Faith wanted to thrust the door open and see what the world had turned out to be like. Faith pushed the Doctor away from the door. The light of the room they entered was unnatural. "I see they took to electricity."
A sliver blue Aston Martin DB5 was staring at them with guns drawn. The Doctor thrust his sonic screwdriver in front of him. The car stared a moment before gasping, "The Doctor is real… my great grandfather was telling the truth!"
"And who might you be?" The Doctor asked, "And who might you're great grandfather be?"
"I am Finn McMissile, British Intelligence and my great grandfather's name was Michael, Michael McMissile."
And so the cars lived through the Doctor on the Dead Planet
And Everybody Lived…
I do not own Doctor Who nor do I own Finn McMissile. I do own all other characters. I hope you like it, I might write a story about Finn and the Doctor more but I just feel kinda busy right now with other stories so... please review!